Ronan Keating has revealed his latest project - a remix of one of the world's most iconic Christmas songs.

The ex-Boyzone star teamed up with New Zealand native and actor Julian Dennison to release a different kind of take on Walking In A Winter Wonderland, re-written to showcase the holiday season on the other side of the globe.

The song - called Summer Wonderland - shows teenager Julian Dennison in the role of the Irishman's producer, trying to sell him on the idea of a sunsoaked Christmas.

And Ronan admits that while they are an unlikely duo, he had plenty of laughs recording the witty clip with the Hunt for the Wilderpeople star.

Ronan Keating and Julian Dennison (Photo: Air NZ)

He said: “Working with Julian was a breeze – he’s an absolute legend, incredibly professional, and to top it off, he can definitely sing.”

Julian added: “My job in the video is to sell Ronan on the idea of a sunny outdoor Christmas – the kind of day I’m looking forward to sharing with my family, jamming on the guitar or ukulele and chillaxing.

“For me Christmas is about getting people together and in the groove, so what better way to celebrate than to cut a track on why a Kiwiana Christmas is epic."

The pair partnered up with Air New Zealand to release the catchy Christmas song.

Air New Zealand’s General Manager Global Brand and Content Marketing Jodi Williams said: "The idea of sleigh bells and snow doesn’t really resonate for us in the Southern Hemisphere so we wanted to have fun with the concept of ‘carol equality’ and come up with a song we Kiwis and Aussies can relate to.

“We hope the video will not only spread festive cheer but will also stand out against more traditional Christmas advertising, inspiring travellers to come down and see you don’t need winter to enjoy our wonderland.”